A two-part joke about Buddhism

Part 1.
The Dalai Lama goes to a street vendor to buy a hot-dog. When the vendor asks what he'd like, the Dalai Lama replies, 'Make me one with everything.'

Part 2.
The Dalai Lama receives his hot-dog, and the vendor tells him that it costs five dollars. When the Dalai Lama hands over a twenty dollar note, the vendor pockets it. The Dalai Lama stands there with his hand out, looking confused.
'What?' the vendor asks.
'Where's my change?' the Dalai Lama enquires.
'I thought you'd know - all change must come from within.'

Thank you very much - I'm here 'til Thursday. Tip generously - Nancy's a real trooper, and her sister's quite ill.